
AC Repair in Watertown, WI
Providing Reliable AC Repairs to Watertown, Waukesha, Sun Prairie, Lake Mills, Oconomowoc, & Beyond
When Wisconsin's summer heat and humidity become unbearable, your air conditioning system is essential for your comfort and safety. A malfunctioning unit compromises more than your comfort. It can impact your indoor air quality and add to your cooling costs. At the first sign of trouble with your air conditioner, contact Carew Heating & AC.
Since 1996, we've served homeowners and businesses throughout Watertown, Waukesha, Sun Prairie, Lake Mills, Oconomowoc, and surrounding communities. Our carefully screened, highly trained technicians bring decades of experience to every service call. They can fix virtually any problem with cooling systems, including central air conditioners, heat pumps, and ductless mini splits.
Instead of suffering through the heat, call (920) 626-3962 or reach out online for air conditioner repair in Watertown. Financing and payment plans are available. Plus, we answer calls 24/7 and have same-day availability.
Signs It's Time to Call a Professional for AC Repair
Recognizing the early warning signs of air conditioning problems can save money and prevent minor issues from becoming major breakdowns.
Don't ignore these common indicators that your AC system needs professional attention:
- Warm air blowing from vents
- Weak or reduced airflow
- Strange grinding, squealing, or banging noises
- Unusual odors
- Frequent cycling
- High humidity levels
- Ice formation on coils or refrigerant lines
- Sudden increases in cooling costs
- Unresponsive thermostat controls or inaccurate temperature readings
- Water leaks
- Uneven cooling
Common Causes of Air Conditioning Problems
You might be wondering why your air conditioner needs repair. Maybe it’s only a few years old, or you’ve just had a tune-up a few weeks ago. Your confusion is understandable. But these things may not be connected to your breakdown. Just like with your car, there are dozens of components that can cause your air conditioner to stop cooling.
Some of the most common we have seen in our decades in the business include:
- Faulty electrical components
- Refrigerant leaks
- Frozen coils
- Damaged fan blades
- Bad compressors
- Faulty thermostats
- Skipped air conditioner maintenance
- Old age and rust

Hear From Our Happy Customers
-
“Great company. The technicians are courteous and efficient. Matt did a great job and explained everything to me.”Kenneth K.
-
“Matt did a great job with my air conditioning cleaning. I recommend signing up for their comfort plan helps keep everything running well and service is on time. Matt does great with tolerance with my dogs; they always want to help.”Dave C.
-
“Matt was very pleasant to work with. He arrived on time and was very professional. He answered all my questions and offered some good advice. Definitely will be using Carew again. Thank you.”Rick E.
-
“Alex did a great job explaining what he was doing and did the tune-up/yearly maint. in a timely manner. And was very nice.”Christian S.
-
“Carew is the best! Our air went out on the hottest day of the year, and they came right away to help us! I am so grateful for their professionalism, quick service, and great prices!!”Jennifer R.
-
“Carew installed a new furnace for me. The installation was quick and efficient. Everything went well, and it's running great.”Michael M.
-
“Carew Heating & AC Inc has been very helpful in sorting my heating and AC needs in my home that I recently purchased. Rob, the Technician was very polite, informative, and thorough.”Peter R.
-
“We had a fantastic experience with Ben and Alex today! They arrived right on time, were incredibly professional, and clearly knew their stuff. It’s not every day you find a team that brings both expertise and a great sense of humor into your home.”Aaron J.
-
“I have been a customer of Carew Heating and Air since we moved to Watertown 5 plus years ago. We are always beyond pleased with our service needs. They are experts. I highly recommend Carew! Thank you!”Lee K.